Consistency in transportation demand and evaluation models. Paper presented at the 51st Annual Meeting of the Highway Research Board HRB, Washington, D.C., January 1972.

This paper is addressed to the evaluation of traveler benefits associated with transportation system alternatives. It is asserted that trip- generation, trip- distribution, modal split, and traffic-assignment steps, which are carried out by individual mathematical models, in the transportation planning process are frequently not consistent with another. Discussion as well as author’s closure is included.